diff --git a/talk/examples/android/res/values/strings.xml b/talk/examples/android/res/values/strings.xml
index 428b0eb8b..4f2f3777e 100644
--- a/talk/examples/android/res/values/strings.xml
+++ b/talk/examples/android/res/values/strings.xml
@@ -87,6 +87,11 @@
     <string name="pref_audiocodec_dlg">Select default audio codec.</string>
     <string name="pref_audiocodec_default">OPUS</string>
 
+    <string name="pref_noaudioprocessing_key">audioprocessing_preference</string>
+    <string name="pref_noaudioprocessing_title">Disable audio processing.</string>
+    <string name="pref_noaudioprocessing_dlg">Disable audio processing pipeline.</string>
+    <string name="pref_noaudioprocessing_default">false</string>
+
     <string name="pref_miscsettings_key">misc_settings_key</string>
     <string name="pref_miscsettings_title">Miscellaneous settings.</string>
 
diff --git a/talk/examples/android/res/xml/preferences.xml b/talk/examples/android/res/xml/preferences.xml
index ad0affb47..73d8d5e25 100644
--- a/talk/examples/android/res/xml/preferences.xml
+++ b/talk/examples/android/res/xml/preferences.xml
@@ -82,6 +82,12 @@
             android:dialogTitle="@string/pref_audiocodec_dlg"
             android:entries="@array/audioCodecs"
             android:entryValues="@array/audioCodecs" />
+
+        <CheckBoxPreference
+            android:key="@string/pref_noaudioprocessing_key"
+            android:title="@string/pref_noaudioprocessing_title"
+            android:dialogTitle="@string/pref_noaudioprocessing_dlg"
+            android:defaultValue="@string/pref_noaudioprocessing_default" />
     </PreferenceCategory>
 
     <PreferenceCategory
diff --git a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
index 4f3f52bfe..735f28e6c 100644
--- a/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/CallActivity.java
@@ -85,6 +85,8 @@ public class CallActivity extends Activity
       "org.appspot.apprtc.AUDIO_BITRATE";
   public static final String EXTRA_AUDIOCODEC =
       "org.appspot.apprtc.AUDIOCODEC";
+  public static final String EXTRA_NOAUDIOPROCESSING_ENABLED =
+      "org.appspot.apprtc.NOAUDIOPROCESSING";
   public static final String EXTRA_CPUOVERUSE_DETECTION =
       "org.appspot.apprtc.CPUOVERUSE_DETECTION";
   public static final String EXTRA_DISPLAY_HUD =
@@ -235,6 +237,7 @@ public class CallActivity extends Activity
         intent.getBooleanExtra(EXTRA_HWCODEC_ENABLED, true),
         intent.getIntExtra(EXTRA_AUDIO_BITRATE, 0),
         intent.getStringExtra(EXTRA_AUDIOCODEC),
+        intent.getBooleanExtra(EXTRA_NOAUDIOPROCESSING_ENABLED, false),
         intent.getBooleanExtra(EXTRA_CPUOVERUSE_DETECTION, true));
     commandLineRun = intent.getBooleanExtra(EXTRA_CMDLINE, false);
     runTimeMs = intent.getIntExtra(EXTRA_RUNTIME, 0);
diff --git a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
index 5a6f99ca9..69aeda5cb 100644
--- a/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/ConnectActivity.java
@@ -81,6 +81,7 @@ public class ConnectActivity extends Activity {
   private String keyprefAudioBitrateValue;
   private String keyprefAudioCodec;
   private String keyprefHwCodecAcceleration;
+  private String keyprefNoAudioProcessingPipeline;
   private String keyprefCpuUsageDetection;
   private String keyprefDisplayHud;
   private String keyprefRoomServerUrl;
@@ -106,6 +107,7 @@ public class ConnectActivity extends Activity {
     keyprefAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyprefAudioCodec = getString(R.string.pref_audiocodec_key);
+    keyprefNoAudioProcessingPipeline = getString(R.string.pref_noaudioprocessing_key);
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
     keyprefDisplayHud = getString(R.string.pref_displayhud_key);
     keyprefRoomServerUrl = getString(R.string.pref_room_server_url_key);
@@ -266,6 +268,11 @@ public class ConnectActivity extends Activity {
     boolean hwCodec = sharedPref.getBoolean(keyprefHwCodecAcceleration,
         Boolean.valueOf(getString(R.string.pref_hwcodec_default)));
 
+    // Check Disable Audio Processing flag.
+    boolean noAudioProcessing = sharedPref.getBoolean(
+        keyprefNoAudioProcessingPipeline,
+        Boolean.valueOf(getString(R.string.pref_noaudioprocessing_default)));
+
     // Get video resolution from settings.
     int videoWidth = 0;
     int videoHeight = 0;
@@ -342,6 +349,8 @@ public class ConnectActivity extends Activity {
       intent.putExtra(CallActivity.EXTRA_VIDEO_BITRATE, videoStartBitrate);
       intent.putExtra(CallActivity.EXTRA_VIDEOCODEC, videoCodec);
       intent.putExtra(CallActivity.EXTRA_HWCODEC_ENABLED, hwCodec);
+      intent.putExtra(CallActivity.EXTRA_NOAUDIOPROCESSING_ENABLED,
+          noAudioProcessing);
       intent.putExtra(CallActivity.EXTRA_AUDIO_BITRATE, audioStartBitrate);
       intent.putExtra(CallActivity.EXTRA_AUDIOCODEC, audioCodec);
       intent.putExtra(CallActivity.EXTRA_CPUOVERUSE_DETECTION,
diff --git a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
index 41faab179..6e69310e5 100644
--- a/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
+++ b/talk/examples/android/src/org/appspot/apprtc/PeerConnectionClient.java
@@ -79,6 +79,10 @@ public class PeerConnectionClient {
   private static final String VIDEO_CODEC_PARAM_START_BITRATE =
       "x-google-start-bitrate";
   private static final String AUDIO_CODEC_PARAM_BITRATE = "maxaveragebitrate";
+  private static final String AUDIO_ECHO_CANCELLATION_CONSTRAINT = "googEchoCancellation";
+  private static final String AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT= "googAutoGainControl";
+  private static final String AUDIO_HIGH_PASS_FILTER_CONSTRAINT  = "googHighpassFilter";
+  private static final String AUDIO_NOISE_SUPPRESSION_CONSTRAINT = "googNoiseSuppression";
   private static final String MAX_VIDEO_WIDTH_CONSTRAINT = "maxWidth";
   private static final String MIN_VIDEO_WIDTH_CONSTRAINT = "minWidth";
   private static final String MAX_VIDEO_HEIGHT_CONSTRAINT = "maxHeight";
@@ -144,6 +148,7 @@ public class PeerConnectionClient {
     public final boolean videoCodecHwAcceleration;
     public final int audioStartBitrate;
     public final String audioCodec;
+    public final boolean noAudioProcessing;
     public final boolean cpuOveruseDetection;
 
     public PeerConnectionParameters(
@@ -151,7 +156,7 @@ public class PeerConnectionClient {
         int videoWidth, int videoHeight, int videoFps, int videoStartBitrate,
         String videoCodec, boolean videoCodecHwAcceleration,
         int audioStartBitrate, String audioCodec,
-        boolean cpuOveruseDetection) {
+        boolean noAudioProcessing, boolean cpuOveruseDetection) {
       this.videoCallEnabled = videoCallEnabled;
       this.loopback = loopback;
       this.videoWidth = videoWidth;
@@ -162,6 +167,7 @@ public class PeerConnectionClient {
       this.videoCodecHwAcceleration = videoCodecHwAcceleration;
       this.audioStartBitrate = audioStartBitrate;
       this.audioCodec = audioCodec;
+      this.noAudioProcessing = noAudioProcessing;
       this.cpuOveruseDetection = cpuOveruseDetection;
     }
   }
@@ -387,7 +393,18 @@ public class PeerConnectionClient {
 
     // Create audio constraints.
     audioConstraints = new MediaConstraints();
-
+    // added for audio performance measurements
+    if (peerConnectionParameters.noAudioProcessing) {
+      Log.d(TAG, "Disabling audio processing");
+      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
+            AUDIO_ECHO_CANCELLATION_CONSTRAINT, "false"));
+      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
+            AUDIO_AUTO_GAIN_CONTROL_CONSTRAINT, "false"));
+      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
+            AUDIO_HIGH_PASS_FILTER_CONSTRAINT, "false"));
+      audioConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
+           AUDIO_NOISE_SUPPRESSION_CONSTRAINT , "false"));
+    }
     // Create SDP constraints.
     sdpMediaConstraints = new MediaConstraints();
     sdpMediaConstraints.mandatory.add(new MediaConstraints.KeyValuePair(
diff --git a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
index 1a017001e..7746ef50d 100644
--- a/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
+++ b/talk/examples/android/src/org/appspot/apprtc/SettingsActivity.java
@@ -50,6 +50,7 @@ public class SettingsActivity extends Activity
   private String keyprefStartAudioBitrateType;
   private String keyprefStartAudioBitrateValue;
   private String keyPrefAudioCodec;
+  private String keyprefNoAudioProcessing;
 
   private String keyprefCpuUsageDetection;
   private String keyPrefRoomServerUrl;
@@ -69,6 +70,7 @@ public class SettingsActivity extends Activity
     keyprefStartAudioBitrateType = getString(R.string.pref_startaudiobitrate_key);
     keyprefStartAudioBitrateValue = getString(R.string.pref_startaudiobitratevalue_key);
     keyPrefAudioCodec = getString(R.string.pref_audiocodec_key);
+    keyprefNoAudioProcessing = getString(R.string.pref_noaudioprocessing_key);
 
     keyprefCpuUsageDetection = getString(R.string.pref_cpu_usage_detection_key);
     keyPrefRoomServerUrl = getString(R.string.pref_room_server_url_key);
@@ -101,6 +103,7 @@ public class SettingsActivity extends Activity
     updateSummaryBitrate(sharedPreferences, keyprefStartAudioBitrateValue);
     setAudioBitrateEnable(sharedPreferences);
     updateSummary(sharedPreferences, keyPrefAudioCodec);
+    updateSummaryB(sharedPreferences, keyprefNoAudioProcessing);
 
     updateSummaryB(sharedPreferences, keyprefCpuUsageDetection);
     updateSummary(sharedPreferences, keyPrefRoomServerUrl);
@@ -131,6 +134,7 @@ public class SettingsActivity extends Activity
       updateSummaryBitrate(sharedPreferences, key);
     } else if (key.equals(keyprefVideoCall)
         || key.equals(keyprefHwCodec)
+        || key.equals(keyprefNoAudioProcessing)
         || key.equals(keyprefCpuUsageDetection)
         || key.equals(keyPrefDisplayHud)) {
       updateSummaryB(sharedPreferences, key);
diff --git a/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java b/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
index 480649131..0312b6ef9 100644
--- a/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
+++ b/talk/examples/androidtests/src/org/appspot/apprtc/test/PeerConnectionClientTest.java
@@ -252,7 +252,7 @@ public class PeerConnectionClientTest extends InstrumentationTestCase
         new PeerConnectionParameters(
             enableVideo, true, // videoCallEnabled, loopback.
             0, 0, 0, 0, videoCodec, true, // video codec parameters.
-            0, "OPUS", true); // audio codec parameters.
+            0, "OPUS", false, true); // audio codec parameters.
 
     PeerConnectionClient client = PeerConnectionClient.getInstance();
     PeerConnectionFactory.Options options = new PeerConnectionFactory.Options();